PCI: pciehp: Convert timers to use timer_setup()

PCI: pciehp: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. This fixes what appears to be a bug
in passing the wrong pointer to the timer handler (address of ctrl pointer
instead of ctrl pointer).

Signed-off-by: Kees Cook <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Cc: Mika Westerberg <[email protected]>
Cc: Mayurkumar Patel <[email protected]>
Cc: Keith Busch <[email protected]>
Cc: Thomas Gleixner <[email protected]>